# -*- Mode:Python; indent-tabs-mode:nil; tab-width:4 -*-
#
# Copyright (C) 2016-2017 Canonical Ltd
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 3 as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import yaml

from testtools.matchers import Equals

import snapcraft.internal
from snapcraft import tests


class PullStateBaseTestCase(tests.TestCase):
    def setUp(self):
        super().setUp()

        class Project:
            def __init__(self):
                self.deb_arch = 'amd64'

        self.project = Project()
        self.property_names = ['foo']
        self.part_properties = {'foo': 'bar'}

        self.state = snapcraft.internal.states.PullState(
            self.property_names, self.part_properties, self.project)


class PullStateTestCase(PullStateBaseTestCase):

    def test_yaml_conversion(self):
        state_from_yaml = yaml.load(yaml.dump(self.state))
        self.assertThat(state_from_yaml, Equals(self.state))

    def test_comparison(self):
        other = snapcraft.internal.states.PullState(
            self.property_names, self.part_properties, self.project)

        self.assertTrue(self.state == other, 'Expected states to be identical')

    def test_properties_of_interest(self):
        self.part_properties.update({
            'plugin': 'test-plugin',
            'stage-packages': ['test-stage-package'],
            'source': 'test-source',
            'source-commit': 'test-source-commit',
            'source-depth': 'test-source-depth',
            'source-tag': 'test-source-tag',
            'source-type': 'test-source-type',
            'source-branch': 'test-source-branch',
            'source-subdir': 'test-source-subdir',
        })

        properties = self.state.properties_of_interest(self.part_properties)
        self.assertThat(len(properties), Equals(10))
        self.assertThat(properties['foo'], Equals('bar'))
        self.assertThat(properties['plugin'], Equals('test-plugin'))
        self.assertThat(
            properties['stage-packages'], Equals(['test-stage-package']))
        self.assertThat(properties['source'], Equals('test-source'))
        self.assertThat(
            properties['source-commit'], Equals('test-source-commit'))
        self.assertThat(
            properties['source-depth'], Equals('test-source-depth'))
        self.assertThat(properties['source-tag'], Equals('test-source-tag'))
        self.assertThat(properties['source-type'], Equals('test-source-type'))
        self.assertThat(
            properties['source-branch'], Equals('test-source-branch'))
        self.assertThat(
            properties['source-subdir'], Equals('test-source-subdir'))

    def test_project_options_of_interest(self):
        options = self.state.project_options_of_interest(self.project)

        self.assertThat(len(options), Equals(1))
        self.assertThat(options['deb_arch'], Equals('amd64'))


class PullStateNotEqualTestCase(PullStateBaseTestCase):

    scenarios = [
        ('no property names', dict(
            other_property='property_names', other_value=[])),
        ('no part properties', dict(
            other_property='part_properties', other_value=None)),
        ('no project', dict(
            other_property='project', other_value=None)),
    ]

    def test_comparison_not_equal(self):

        setattr(self, self.other_property, self.other_value)
        other_state = snapcraft.internal.states.PullState(
            self.property_names, self.part_properties, self.project)

        self.assertFalse(self.state == other_state,
                         'Expected states to be different')
